3.5mm Waterproof walkie talkie for mobile phone, two way radio,hf transceiver Answer and Hang up button 3.5mm Waterproof ... walkie talkie for mobile phone, two way radio,hf transceiver Mobile phone walkie-talkieTransceiver For:Iphone,IPAD,Blackberry ... , pink, green, black, whiterFunction:1. Answer and Hang up button;2. Volume Control power On/Off3. Speaker;4. Microphone;5. Mute ...